A switch output circuit based on power sequence debounce control

Abstract

The invention provides a digital output circuit based on power supply timing sequence jitter elimination control. The circuit comprises a power supply timing sequence jitter elimination control circuit and a digital output circuit, wherein the power supply timing sequence jitter elimination control circuit and the digital output circuit are connected. The power supply timing sequence jitter elimination control circuit comprises a power supply circuit and a timing sequence control circuit. The power supply circuit provides a power supply input signal and a timing sequence control circuit control signal. The timing sequence control circuit processes the power supply input signal, and outputs an optimized power supply signal to the digital output circuit. According to the invention, the high-speed switch and the voltage stability characteristic of a MOS tube are used to design the power supply timing sequence jitter elimination control circuit; the input timing sequence relation and driving ability of the power supply signal are improved; the power supply signal quality is optimized; the control signal of the timing sequence control circuit is provided by the control circuit; serial processing is carried out on a variety of power supply input signals to ensure that all power supply output signals are managed by a unified signal; and the power supply signal timing sequence uniformity is ensured.

Description

technical field [0001] The invention belongs to the field of digital circuit control, in particular to a switch value output circuit based on power sequence debounce control. Background technique [0002] The switch value output is to convert the analog signal or digital control signal sensed by the sensor into a switch value signal, and provide it as a switch of the load circuit. Usually, the switching value is realized by electromagnetic or solid state relay. There are two states of open and closed for the switch, and the use of the switch output signal ensures that the switch is in a constant state, that is, keeps the open or closed state, and the output load circuit is stable. [0003] Due to the problem of control circuit design, when the traditional numerical control switch output signal is closed, it may produce a short-term switch jitter phenomenon. That is, before the switch signal is in a stable closed state, the switch has one or more crossovers in a very short ...

AI Technical Summary

Problems solved by technology

High-precision systems are usually equipped with fault diagnosis equipment. If there is jitter in the switching value, it will cause the fault diagnosis equipment to alarm.

If there is no fault diagnosis equipment in the system, the cross-connection of the switching value will cause the instability of the load circuit, and in extreme cases, it may lead to overshoot or oscillation of the system

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